Search found 138 matches

by mAnKiNd
Sun Sep 16, 2018 6:44 pm
Forum: Gallery
Topic: The Heart Nebula Double Stacking Project
Replies: 9
Views: 1215

Re: The Heart Nebula Double Stacking Project

Well, there are certainly visible differences with the DSS stack, can't say I prefer one or the other yet, need to have a closer look. Heart Nebula_09_16_2018T14_15_11_Stack_16bits_16frames_191s__Light_.jpg For an A/B comparison, open these two links in new tabs: DSS: https://www.astrobin.com/full/3...
by mAnKiNd
Sun Sep 16, 2018 6:31 pm
Forum: Gallery
Topic: The Heart Nebula Double Stacking Project
Replies: 9
Views: 1215

Re: The Heart Nebula Double Stacking Project

Thanks guys! Brian - Yes, narrowband is a must for detail in such LP! RGB will be washed out in comparison. Still though, the HO data will serve as the detail in the Luminance :) Dave - Yes, I too am pleased with the data distribution :) I wouldn't really want to disrupt the critter ecosystem runnin...
by mAnKiNd
Sun Sep 16, 2018 5:05 pm
Forum: Gallery
Topic: The Heart Nebula Double Stacking Project
Replies: 9
Views: 1215

Re: The Heart Nebula Double Stacking Project

Forgot to mention that I used both the smart histogram tool followed by manual fine-tuning and visual confirmation to get the histogram I thought was best for the stack. I forgot to save an individual frame to share its FITS Liberator image here, I'll do that on the next run. I wanted to also add th...
by mAnKiNd
Sun Sep 16, 2018 4:51 pm
Forum: Gallery
Topic: The Heart Nebula Double Stacking Project
Replies: 9
Views: 1215

Re: The Heart Nebula Project

Single example HO Live Stack details: [ZWO ASI1600MM Pro] Pan=0 Tilt=0 Output Format=FITS files (*.fits) Binning=1 Capture Area=4656x3520 Colour Space=MONO16 Hardware Binning=Off High Speed Mode=Off Turbo USB=100(Auto) Flip=None Frame Rate Limit=Maximum Gain=230 Exposure=30 Timestamp Frames=Off Brig...
by mAnKiNd
Sun Sep 16, 2018 4:48 pm
Forum: Gallery
Topic: The Heart Nebula Double Stacking Project
Replies: 9
Views: 1215

Re: The Heart Nebula Project

Here's a picture of my backyard and setup so you get an idea of what I'm working with:
by mAnKiNd
Sun Sep 16, 2018 4:47 pm
Forum: Gallery
Topic: The Heart Nebula Double Stacking Project
Replies: 9
Views: 1215

The Heart Nebula Double Stacking Project

I'd like to share the ongoing results from a project that I've just embarked on from my Bortle 8/9 backyard. My goal is to obtain short (i.e. 15minute) fully calibrated (flats and darks 60 each) live stacks every night and then to double stack them in DSS as if they were single long-exposure lights....
by mAnKiNd
Sun Sep 16, 2018 4:33 pm
Forum: Deep Sky Imaging
Topic: sticky exposure length or sticky gain/offset for sky-limited exposures?
Replies: 41
Views: 4552

Re: sticky exposure length or sticky gain/offset for sky-limited exposures?

Yes, Long Island snails indeed! I saw your other post about your darks project. Some very good stuff going on there. To bring back this topic to relevance, I chose to stack 15 minutes constructed from 30 frames made from 30 second exposures with a gain of 230 and offset of 100 with my HO filter. Tho...
by mAnKiNd
Sun Sep 16, 2018 3:26 pm
Forum: Tips and Tricks
Topic: New public domain software: astro-dark-frame-library-manager
Replies: 10
Views: 1754

Re: New public domain software: astro-dark-frame-library-manager

This is indeed really very interesting. I just wanted to share a different thought to add here, not in anyway trying to take away from your approach though. I can't help but thinking that when I faced this issue with mismatched temperatures in dark subtraction with my DSLR, I always adopted the LENR...
by mAnKiNd
Sun Sep 16, 2018 4:01 am
Forum: Deep Sky Imaging
Topic: sticky exposure length or sticky gain/offset for sky-limited exposures?
Replies: 41
Views: 4552

Re: sticky exposure length or sticky gain/offset for sky-limited exposures?

That's scary! I once had a snail climb up all the way on my back, until I noticed something slimy on my ear and picked the mister off me with a grin. I was so fixated and immobile when observing and fine-tuning a long livestack, this guy had all the time in the world to climb me. This experience has...
by mAnKiNd
Sun Sep 16, 2018 3:22 am
Forum: Deep Sky Imaging
Topic: sticky exposure length or sticky gain/offset for sky-limited exposures?
Replies: 41
Views: 4552

Re: sticky exposure length or sticky gain/offset for sky-limited exposures?

Yes! Kids around here sometimes come up and have a look and they're all wow and curious, but it's past bedtime for most of them.. during later times I get visits from cats, bugs and the occasional raccoon.